@misc{indiciae4ed4296fccf1,
  title = {Immunization in the developing world: strategic challenges.},
  author = {D J Nokes and F T Cutts},
  doi = {10.1016/0035-9203(93)90001-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/8249056/},
  note = {Source identifier: 8249056}
}